[NonGNU ELPA] Popup version 0.5.9

[ELPA update]

Version 0.5.9 of package Popup has just been released in NonGNU ELPA.
You can now find it in M-x list-packages RET.

Popup describes itself as:

  ===========================
  Visual Popup User Interface
  ===========================

More at https://elpa.nongnu.org/nongnu/popup.html

## Summary:

  popup.el is a visual popup user interface library for Emacs.  This
  provides a basic API and common UI widgets such as popup tooltips
  and popup menus.

## Recent NEWS:

[Not provided 🙁]